Patent
Micro-channel heat exchanger
| العنوان: | Micro-channel heat exchanger |
|---|---|
| Patent Number: | 8,826,971 |
| تاريخ النشر: | September 09, 2014 |
| Appl. No: | 12/755700 |
| Application Filed: | April 07, 2010 |
| مستخلص: | There is disclosed a micro-channel heat exchanger, comprising a first header formed with an inlet; a second header spaced apart from the first header, one of the first and second headers being formed with an outlet; flat tubes, two ends of each flat tube being connected with the first and second headers respectively such that a plurality of micro-channels of each flat tube communicate with the first and second headers; fins, each fin being disposed between two adjacent flat tubes; and a return pipe, a first end of which being connected to the outlet formed in one of the first and second headers and a second end thereof being extended towards the other of the first and second headers. The location of the outlet of the micro-channel heat exchanger is easy to change, and the micro-channel heat exchanger is low in cost, compact in structure and easy to install. |
| Inventors: | Xiangxun, Lu (Zhejiang, CN); Huang, Lin-jie (East Amherst, NY, US) |
| Assignees: | Danfoss Sanhua (Hangzhou) Micro (Zhejiang, CN) |
| Claim: | 1. A micro-channel heat exchanger, comprising: a first header formed with an inlet; a second header spaced apart from the first header by a predetermined distance, in which one of the first and second headers is formed with an outlet; flat tubes, in which two ends of each flat tube are connected with the first and second headers respectively such that a plurality of micro-channels of each flat tube communicate with the first and second headers; fins, in which each fin is disposed between two adjacent flat tubes; and a return pipe, a first end of which is connected to the outlet formed in one of the first and second headers and a second end thereof is extended towards the other of the first and second headers; wherein the second end of the return pipe passes through the first or second header by by-passing the first or second header so that the return pipe is formed around a portion of the first or second header being by-passed and conforms to the shape thereof. |
| Claim: | 2. The micro-channel heat exchanger according to claim 1 , wherein the return pipe is extended along an outermost side of the micro-channel heat exchanger. |
| Claim: | 3. The micro-channel heat exchanger according to claim 2 , wherein the return pipe is welded to an outermost fin adjacent to the return pipe. |
| Claim: | 4. The micro-channel heat exchanger according to claim 1 , wherein the micro-channel heat exchanger comprises an odd number of flow paths and the outlet is formed in the second header. |
| Claim: | 5. The micro-channel heat exchanger according to claim 4 , wherein partition plates are disposed in the first and second headers respectively such that the micro-channel heat exchanger comprises at least three flow paths. |
| Claim: | 6. The micro-channel heat exchanger according to claim 1 , wherein the micro-channel heat exchanger comprises an even number of flow paths and the outlet is formed in the first header. |
| Claim: | 7. The micro-channel heat exchanger according to claim 6 , wherein partition plates are disposed in the first and second headers respectively such that the micro-channel heat exchanger comprises at least four flow paths. |
| Claim: | 8. The micro-channel heat exchanger according to claim 1 , wherein the micro-channel heat exchanger is used as a condenser and the return pipe can be further used as a container for storing a fluid. |
| Claim: | 9. The micro-channel heat exchanger according to claim 1 , wherein at least one rib is disposed in the return pipe therein such that interior of the return pipe is divided into at least two passages. |
| Current U.S. Class: | 165/176 |
| Patent References Cited: | 4679410 July 1987 Drayer 5141048 August 1992 Sausner 5186248 February 1993 Halstead 5400853 March 1995 Wolters 5752566 May 1998 Liu et al. 6494059 December 2002 Yamazaki et al. 7093461 August 2006 Patel et al. 2002/0046571 April 2002 Bernini 2005/0056402 March 2005 Han et al. 2006/0032626 February 2006 Keen 2006/0090879 May 2006 Han 2006/0144076 July 2006 Daddis et al. 1410929 April 2004 362781 December 1931 09053866 February 1997 09053866 February 1997 09053867 February 1997 11211277 August 1999 2006083484 August 2006 2008/060270 May 2008 |
| Other References: | European Search Report for EP 10 00 3412 dated Nov. 29, 2013. cited by applicant |
| Primary Examiner: | Duong, Tho V |
| Attorney, Agent or Firm: | McCormick, Paulding & Huber LLP |
| رقم الانضمام: | edspgr.08826971 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |